As far as I know my TFC( i think this is the term) membranes
require a carbon block filter.
I don't know the reason but i believe the water is forced to go through the block which removes the chlorine which would otherwise damage the ro membrane.
If using GAC then some of the water might make it through with out comming in contact with the carbon.
Just my guess :?
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No matter what the morrow brings, inventors keep inventing things.
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Jonathan
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www.cakerybakery.ca
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